# a = 'hello'
# b = 'world'
# print(a + b)

# a = 'hello'
# b = 10
# print(a + b)

# a = 10
# b = 5.5
# print(a + b)

# a = 10
# b = False
# print(a + b)

# a:int = 10

# a = 10; print(a)

a = true